Wipe-out mechanism



y 1966 H. GREENWALD ETAL. 3,260,339

WIPE-OUT MECHANISM Filed Feb. 1, 1965 3 Sheets-Sheet l U m 1 m 3 INVENTORS HARRY GREENWALD JACK H. MALEK ISADORE SCHIEBER BY Z j 7AT TOR N EY.

5 y 1966 H. GREENWALD ETAL 3,260,339

WIPE-OUT MECHANISM 2 Sheets-Sheet 2 Filed Feb. 1, 1965 INVENTORS HARRY GREENWALD JACK H. MALEK ISADORE SCHIEBER ATTORNEY.

United States Patent 3,260,339 WIPE-OUT MECHANISM Harry Greenwald, Whitestone, N.Y., Jack H. Malek, Parsippany, N..I., and Isadore Schieber, Bronx, N.Y., assignors of one-third to said Greenwald, one-third to Lotus Wollf, Brooklyn, N.Y., and one-third to Harry Silberglait, Brooklyn, N.Y.

Filed Feb. 1, 1965, Ser. No. 429,221 9 Claims. (Cl. 194-92) This invention relates to improvements in a wipe-out mechanism which is adapted to eliminate preselected operations in an associated coin-controlled device wherein the sequence of operation is controlled by a switching arrangement.

The present invention is ideally suited for use in a coinoperated washing machine and will be disclosed in conjunction therewith; however, it is to be understood that this is by way of illustration only and not by way of limitation. That is, the present invention may be utilized in association with any coin-controlled device requiring a switching arrangement to control the operation thereof, and wherein some of the controlled operations may be eliminated.

The normal complete washing cycle in conventional coin-operated washing machines usually comprise the following operations: fill; slow agitation; drain; spin; fill; slow agitation; drain; spin; rinse; drain; and spin shutoff. During the fill operation the clothes retaining portion of the machine which may comprise a drum, fills with water and thereafter the drum slowly agitates the clothes and, at the end of the slow agitation cycle, the water is drained off and the drum spins very fast to spin excess water from the clothes. These four operations are usually referred to as the soak portion of the washing cycle. The soak portion is repeated and, at the end of the second spin operation, the clothes are rinsed and the water is drained. Lastly, in the spin shutoff operation, the excess water is spun from the clothes and the machine is shut off. Each of the aforementioned operations is controlled by a plurality of cam-operated switches. The cams that operate the switches are positioned and arranged on a shaft which is rotated at a predetermined speed by a motor to cause sequential operation of the switches. Thus, a timer and switching arrangement such as that described above is disclosed in Patent No. 3,138,724, issued to P. L. Wood on June 23, 1964 and one is referred to this patent if more information on this device is desired.

In many instances it is highly desirable to bypass the first soak portion of the washing cycle such as when delicate fabrics or baby clothes are to be washed. Additionally, it is desirable to bypass the soak portion of the washing cycle when time does not permit the user of the machine to remain in the vicinity of the machine, thereby decreasing the time interval for the washing cycle. This latter situation arises most often in self-service coin-operated laundries where the housewife using the washing machine is required to remain nearby since the laundry is the individuals responsibility.

While it is a relatively simple matter to incorporate devices in a home washing machine which are adapted to bypass portions of the washing cycle since the machine is always under the control of the operator, a problem is encountered in making such provisions in a coin-operated washing machine because once the cycle is initiated the customer no longer has any control over the machines operation. Additionally, even if new coin-operated machines Were provided with a soak portion bypass or elimination device, it is highly unlikely that a washing machine laundry owner would purchase the new machines to replace the machines in use.

Accordingly, it is an object of the present invention to ice provide a wipe-out mechanism for a coin-operated switching arrangement wherein the operation of preselected switches may be bypassed.

It is another object of the present invention to provide a wipe-out mechanism for a coin-controlled switching arrangement which is compatible for utilization in washing machines now in use and which provide for the bypassing of portions of the washing cycle upon operation of the coin slide.

In a conventional coin slide of the type utilized in a coin-operated washing machine the inward movement of the coin slide is limited to a small portion of its path of travel unless a predetermined amount of money has been inserted into appropriate apertures in a coin-receiving portion of the slide whereupon the movement of the slide is no longer limited and the coin-receiving portion is free to be moved to the extent of its travel. In a washing machine as described above, cooperable members are provided between the coin-receiving portion of the slide and the timing shaft and are positioned for engagement when the coin slide is pushed to the limit of its travel to rotate the timing shaft from a first or normal position to a second position. When the shaft is in the second position a cam-operated switch is operated to energize the timing motor to rotate the shaft through one revolution and thereby sequentially operate other switches to control the washing cycle. In accordance with the present invention a shaft extension is provided which is coaxial to the timing shaft and is non-rotatably connected thereto and rotatable therewith. The shaft extension is further provided with a projecting cam which is adapted to rise on a cam surface on the coin-receiving portion of the coin slide. The cam and cam surface are positioned so that when the timing shaft is in the second position and the coin slide is operated and moved the said small portion of its travel, the cam will engage and ride upon the cam surface to further rotate the shaft through a predetermined angle. The said predetermined angle is made to correspond to a rotation of the shaft which will cause preselected cams controlling the first soak portion of the washing cycle to move past their associated switches thereby eliminating the operations controlled by the preselected cams from the washing cycle.

It is a feature of the present invention to provide a wipe-out mechanism for a coin-operated switching arrangement wherein the wipe-out mechanism includes cooperating members between a shaft which controls the operation of the switches and a coin slide; said members being operable to rotate the shaft upon operation of the coin slide to bypass the operation of preselected switches.

The above and other objects and features of the present invention will become more apparent from a consideration of the following detailed description when taken in conjunction with the drawings in which:

FIG. 1 is a top plan view of the wipe-out mechanism of the present invention in conjunction with a coin-controlled washing machine timer;

FIG. 2 is a front elevational view, with parts broken away, of the device illustrated in FIG. 1;

FIG. 3 is a sectional view taken along the lines 3-3 in FIG. 2;

FIG. 4 is an exploded fragmentary view of the timer shaft and ratchet mechanism shown in FIGS. 1 and 2 to an enlarged scale;

FIG. 5 is a perspective exploded view of the various cams forming a portion of the timer shown in FIGS. 1 and 2; and

FIG. 6 is a perspective view of the timer shaft shown in FIGS. 1 and 2, as viewed from the rear.

The drawings are substantially to scale of a working model of the present invention. Like numbers in the various figures indicate identical elements.

As noted above, the present invention is particularly suited for use in conjunction with a coin-controlled washin-g machine switching arrangement. As shown in FIGS. 1 and 2, the invention may comprise a frame 11 having a timer unit connected to the rear wall thereof which sequentially controls the operations of an associated Clevice; a coin slide 12 connected to the front of the frame for actuating the timer unit, and a wipe-out mechanism 13, which is adapted to eliminate a number of the aforementioned operations in the associated device.

More particularly, frame 11 comprises a base 14, respective side walls 15 and 16, a rear wall 17 and a front wall 18. A flange 19 is connected to side wall 16 adjacent rear wall 17 by a depending foot 20 in any conventional manner and contains two apertures 21 therein. These apertures are adapted to receive screws to mount the arrangement to the associated coin-controlled device which, in this particular illustration, is a washing machine. The timing unit 10 is connected to the outer surface of rear wall 17 in any conventional manner. Wall 17 is provided with a centrally located bore 22 which rotatably receives the end of a timing shaft therethrough.

Timing unit 10 is similar in construction to the timing unit disclosed in the aforementioned patent to Wood and will be discussed here only briefly. If more information on this device is desired, one is referred to the Wood patent. Timing unit 10 comprises a casing 31. A synchronous motor 32 is connected to the end of casing 31 and includes an output shaft which is connected to timer shaft 30 through appropriate gearing to thereby drive timer shaft 30 at a predetermined rate of speed. Cam-operated switches 33A-33F are mounted above timer shaft 30 and are adapted to be operated by the respective cams 34A- 34F which are non-rotatably mounted on shaft 30. An energizing source 36 is serially connected between motor 32 and switch 33A by the leads A, 35B and is adapted to energize motor 32 when switch 33A is operated. Switches 33B33F are adapted to be connected to the associated machine (not shown) and are operable to control the operations of the associated machine or device in the conventional manner. For example, switch 33B may control the fill cycle of the washing machine; switch 33C may control the slow agitation operation of the washing machine; switch 33D may control the spin operation of the associated washing machine and switch 33F may control the rinse portion of the washing cycle. As will be evident from a consideration of FIGURE 5, the cams are provided with cam lobes which are spaced about the periphery of the cams in such a manner that the various cam operated switches will be sequentially operated as the cams are rotated by shaft 30 in the direction indicated by arrow 9. Thus, cam 34A is provided with cam lobe 37; cam 34B is provided with lobes 38A, 38B; cam 34C is provided with lobes 39A, 39B; cam 34D is provided with cam lobes 40A, 40B, 40C; cam 34B is provided with lobes 41A, 41B, 41C; and cam 34F is provided with cam lobe 42. Cam lobe 37 extends about the major portion of the periphery of cam 34A to maintain switch 33A operated (to thereby keep motor 32 energized) from the start of the washing cycle to the end of same.

Shaft 30 includes a reduced diameter extension 30A having a fiat surface 30B, as shown in FIG. 3. A bushing 50, provided with a centrally located bore 51 extending therethrough, is received on extension 30A. Bushing 50 is further provided with a threaded transverse aperture 52 which threadedly receives a setscrew 53 therein, the end of which is adapted to abut fiat surface 30B to nonrotatably secure bushing 50 on extension 30A. Bushing 50 is further provided with an integral radially extending peripheral flange 54 at the end thereof. Flange 54 is provided with respective teeth 55A, 55B and 55C over a portion of its periphery and serves as the ratchet wheel in the ratchet mechanism described below.

A barrel cam 56 having a frontwardly projecting cam surface 56A is rotatably received on shaft 30 and is pro- 41 vided with a pawl 57 (FIGS. 3 and 4) which is engageable with the ratchet wheel to rotate bushing 50 and, consequently, to rotate shaft 30. Thus, barrel cam 56 is provided with a web 58 adjacent the end thereof and an integral rearwardly extending projection 59 connected to the web. A bore 60 is provided in member 59 and is adapted to rotatably receive shaft 30 therein while web 58 is provided with a coaxial bore 61 of reduced diameter which is adapted to receive shaft extension 30A therethrough in rotatable engagement. A nylon bushing 62 having a central bore 62A therein and a retaining spring 63, having a central bore 63A therein, are respectively mounted on shaft 30 between member 59 and rear wall 17. Retaining spring 63 serves to maintain shaft 30 in place. Web 58 is further provided with a screw 64 (FIG. 3) which is in threaded engagement with a suitably threaded aperture and which receives one end of tension spring 65 thereabout. The other end of spring 65 is connected to an upstanding hook member 66 which may be struck up from base 14 of frame 11. Thus, spring 65 biases cam 56 in a counter-clockwise direction as taken in FIG. 3. A stop plate 67 is connected to rear wall 17 and is provided with a frontwardly projecting flange 68 which is adapted to engage an upwardly projecting stud 69 on barrel cam 56 to limit counter-clockwise rotation of the barrel cam. The pawl 57 is rotatably mounted on web 58 by means of the pivotal connection 70 and is biased against flange 54 of bushing 50 by a spring 71 which engages one end of pawl 57 and a stud 72 on web 58.

A coin slide 12 is connected to the front wall 18 of frame 11 by the screws 23. The coin slide is conventional and may be of the type disclosed in Patent No. 2,095,431, issued to K. C. Bugg on October 12, 1937. Briefly, the coin slide comprises a coin-receiving portion whose inward movement toward rear wall 17 is limited to a small portion of its path of travel unless preselected coins are deposited in the apertures 81 and 82 (FIG. 1) in the coin-receiving portion whereupon the coin-receiving portion 80 of the slide may be moved to the full extent of its travel and the coins will fall into a vault 83. A downwardly projecting block 84 is connected to the end of coin-receiving portion 80 by a screw 85. Block 84 supports a cam surface 86 which comprises respective rearwardly and transversely extending arms 86A and 86B. Cam surface 86 is positioned so that when coin-receiving portion 80 is pushed to the full extent of its travel (in response to the deposit of predetermined coins) surface 86 will engage barrel cam 56 and rotate the cam in a clockwise direction as taken in FIG. 3. Thus, pawl 57 will engage tooth 55C of the ratchet wheel 54 to thereby rotate shaft 30 through a preselected angle. When coinreceiving portion 80 is moved back to its initial position, barrel cam 56 wil rotate back to its respective initial position (with stud 69 abutting flange 68) by means of biasing spring 65. Operation of the coin-receiving portion 80 of coin slide 12 will cause pawl 57 to engage tooth 55B of the ratchet wheel to rotate shaft 30 through another preselected angle. When the predetermined coins are again inserted into apertures 81 and 82 and coin-receiving portion 80 is again moved to the full extent of its travel thereby rotating barrel cam 56 for the third time, pawl 57 will engage tooth 55A of the ratchet Wheel and again rotate shaft 30 thruogh a third preselected angle. For ease of reference, the position of the shaft at this point will be referred to hereinafter as the first position. The angular movement of shaft 30 is arranged so that when coin-receiving portion 80 is operated for the third time, i.e. when the shaft is in the first position, lobe 37 of cam 34A will operate switch 33A to thereby energize timing motor 32. Thereafter, rotation of shaft 30 will be effected through motor 32 which will cause the respective lobes of the respective cams to sequentially engage the associated cam-operated switches to sequentially control the operations in the associated washing machine. As will be obvious from FIG. 5, when motor 32 has rotated shaft 30 to the point where switch 33A is no longer in contact with lobe 37 motor 32 will be deenergized and the machine will be ready for a new cycle of operation.

In accordance with the present invention, a shaft 90, having a centrally located bore 90A extending through a portion of the shaft from the rear end thereof, is mounted on shaft extension 30A with the shaft extension being received in bore 90A. A transverse threaded aperture 91 is provided in shaft 90 with a set screw 92 in threaded engagement therewith, the end of which is adapted to abut shaft extension 30A to non-rotatably connect shaft extension 30A and shaft 90 together. Adjustable support bracket 93, having a downwardly projecting leg 93A and rearwardly projecting leg 93B, is mounted on base 14- and is affixed in place by screws 94 which are received in respective slots 95 provided adjacent each side edge of the rearwardly projecting leg 93B of support 93. Slots 95 are provided to allow for the alignment of support 93 with respect to shaft 90. That is, support 93 is further provided with a slot 930 (FIG. 6) adjacent its upper edge which rotatably supports the end of shaft 90 therein.

Shaft 90 is further provided with a cam 96 which may be connected to shaft 90 by any conventional means (not shown).

Cam 96 is sized and positioned to be engaged by cam surface 86 when shaft 30 has been rotated to the aforementioned first position. Thus, inward movement of coin-receiving portion 80 will cause cam 96 to ride up upon cam surface 86 to thereby rotate shaft 30 through an additional predetermined angle. It is to be especially noted that in the preferred embodiment no coins need be received in coins'receiving portion 80 to accomplish this result. In other words, cam 96 is so positioned that when shaft 30 is in the first position, the movement of coinreceiving portion 80 of coin slide 12 over the portion of its path of travel to which the portion 80 is limited when no coins are deposited therein will cause the aforementioned inter-engagement of cam 96 and cam surface 86 to rotate shaft 30. In the present example (i.e. when the present invention is utilized in conjunction with a coin-operated washing machine), the rotation of shaft 30 will be such as to cause the first soak cycle of the washing machine to be completely eliminated. That is, shaft 30 will be rotated very quickly through an angle such that lobes 38A of cam 34B, lobe 39A of cam 34C, and lobe 40A of cam 34D will have been rotated past the associated cam-operated switches to thereby eliminate .the operations controlled by the aforementioned cams. That is, the cam lobes will very quickly operate their respective switch as .the shaft is moved through the aforementioned angle. However, the speed of rotation of the shaft in this latter case is such that albeit the switches are momentarily operated they will not be operated a sufficient interval of time to allow the respective switches to actuate the respective controlled operation in the associated device.

In accordance with the objects and features of the present invention, a wipe-out mechanism for a coinoperated switching arrangement has been provided which simply and easily eliminates preselected operations in the associated device by an additional movement of the coin-receiving slide.

While a preferred embodiment of the present invention has been disclosed, it will become obvious to those skilled in the art that modifications may be made therein without departing from the spirit or scope of the present invention. That is, it will be apparent that the present invention may be utilized in devices other than a washing machine to obtain the same results (i.e., it may be utilized in any device which includes a switching arrangement which controls the operations of the associated device and wherein some of the operations may be eliminated).

What is claimed is:

1. In a coin-operated switching arrangement for controlling a plurality of respective operations in an associated device including in combination, a frame, a shaft rotatably mounted on said frame, said shaft normally being in a first position, a plurality of switches adapted to control respective operations in the .associated device, a like plurality of operating means fixed on said shaft and rotatable therewith respectively associated with said switches and positioned and arranged to operate the associated switches in a predetermined sequence as said shaft is rotated through respective different angles of rotation from said first position, a coin slide having a coin receiving member operable to traverse a predetermined path of travel when a preselected amount of money is inserted into said coin-receiving member, the extent of travel of said coin-receiving member being limited to a portion of its path of travel when said preselected amount of money is not inserted into said coin slide and advancing means on said shaft engageable with said coin slide when said coin slide is operated in response to the deposit of a predetermined amount of money for rotating said shaft from said first position to a second position whereby said plurality of operating means operates at least one of said plurality of switches, the invention comprising wipe-out means mounted on said shaft and responsive to the operation of said coin slide for rotating said shaft past said second position to bypass the operation controlled by said one of said plurality of switches.

-2. In a coin-operated switching arrangement as defined in claim 1, wherein said wipe-out means is operatively positioned to be engaged by said coin slide when said shaft is in said second position and is arranged to rotate said shaft past said second position when the extent of travel of said coin-receiving member is limited to the said portion of its path of travel.

3. In a coin-operated switching arrangement as defined in claim '1, wherein said advancing means comprises a barrel cam rotatably mounted on said shaft and initially being in a normal position, a ratchet wheel mounted on said shaft and rotatable therewith, and a pawl pivotally connected to said barrel cam and engageable with said ratchet wheel to rotate the shaft in response to rotation of said barrel cam by said coin slide, and biasing means for biasing said barrel cam to said normal position.

4. In a coin-operated switching arrangement for sequentially controlling respective operations in an as sociated device including a frame, a timing shaft rotatably mounted on said frame and normally being in a first position, a timing motor connected to said timing shaft for rotating said timing shaft at a predetermined rate of speed, a plurality of switches, one of said plurality of switches being adapted to connect a source of energy to said timing motor to energize said timing motor, and different ones of the other of said plurality of switches being adapted to control respective operations in the associated device, a like plurality of operating members fixed on said shaft and rotatable therewith respectively associated with different ones of said switches and positioned and arranged to operate the associated switches in a predetermined sequence, and advancing means connected to said shaft and positioned to be engaged by a coin slide when the coin slide is operated in response to the deposit of a preselected amount of money to rotate said shaft from the first position to a second position; the invention comprising wipe-out means on said shaft positioned to be engaged by the coin slide for fur ther rotation of said timing shaft past said second position to eliminate sequential operations in the associated device controlled by preselected ones of said other of said plurality of switches.

5. In a coin-operated switching arrangement for sequentially controlling respective operations in an associated device including a frame, a timing shaft rotatably mounted on said frame, said timing shaft normally being in a first position, a timing motor connected to said timing shaft for rotating said timing shaft at a predetermined rate of speed, a first switch adapted to connect a source of power to said timing motor to energize said motor, a plurality of second switches adapted to control respective operations in the associated device, a plurality of operating means on said timing shaft cooperable with said first and second switches and arranged to operate said first switch upon rotation of said timing shaft through a predetermined angle and to sequentially operate said plurality of second switches upon further rotation of said timing shaft past said predetermined angle, advancing means connected to said timing shaft and operatively positioned to be engaged by a coin slide when the coin slide is operated in response to the deposit of a predetermined amount of money for rotating said timing shaft through said predetermined angle, and wipe-out means on said timing shaft operatively positioned to be engaged by the coin slide for rotation of said timing shaft past said predetermined angle to quickly operate preselected ones of said plurality of second switches whereby preselected operations of the respective operations of the associated device are eliminated.

6. In a coin-operated switching arrangement as defined in claim 5, wherein said wipe-out means comprises a second shaft connected to said timing shaft and rotatable therewith, and a cam mounted on said second shaft and positioned to be engaged by the coin slide when said timing shaft has been rotated through said predetermined angle.

7. In a coin-operated switching arrangement as defined in claim 6, wherein said cam is positioned to rotate said timing shaft when the coin slide is operated over a limited portion of its path of travel.

8. A coin-operated switching arrangement of the type for sequentially controlling respective operations in an associated device including a frame, a timing shaft rotatably mounted on the frame, a timing motor connected to said timing shaft for rotating said timing shaft at a predetermined rate, a first switch adapted to connect a source of power to said timing motor to energize said motor, a plurality of second switches adapted to control respective operations in the associated device, a plurality of operating means on said timing shaft cooperable with said first and second switches and arranged to operate said first switch upon rotation of said timing shaft through a predetermined angle and to sequentially operate said plurality of second switches upon further rotation of said timing shaft past said predetermined angle, a coin slide having a coin-receiving member which is operative to traverse a predetermined path of travel when a preselected amount of money is inserted into said coinreceiving member, the extent of travel of said coin-receiving member being limited to a portion of its path of travel when said preselected amount of money is not inserted into said coin-receiving member, advancing means connected to said timing shaft and positioned to be engaged by said coin-receiving member when the coin-receiving member is operated in response to the insertion of said preselected amount of money for rotating said timing shaft through said predetermined angle; the invention comprising wipe-out means connected to said timing shaft and operatively positioned to be engaged by said coinreceiving member for further rotation of said timing shaft past said predetermined angle to quickly move preselected ones of said plurality of operating means past the associated switches, whereby preselected operations in the associated device are eliminated.

9. A coin-operated switching arrangement as defined by claim 8, wherein said wipe-out means is positioned to be engaged by the coin-receiving member when the extent of travel of said coin-receiving member is limited to said portion of its path of travel.

References Cited by the Examiner UNITED STATES PATENTS 2,427,396 9/1947 Farny 194- 9 3,012,428 12/1961 Cissell.

M. HENSON WOOD, JR., Primary Examiner.

S. H. TOLLBERG, Assistant Examiner. 

1. IN A COIN-OPERATED SWITCHING ARRANGEMENT FOR CONTROLLING A PLURALITY OF RESPECTIVE OPERATIONS IN AN ASSOCIATED DEVICE INCLUDING IN COMBINATION, A FRAME, A SHAFT ROTATABLY MOUNTED ON SAID FRAME, SAID SHAFT NORMALLY BEING IN A FIRST POSITION, A PLURALITY OF SWITCHES ADAPTED TO CONTROL RESPECTIVE OPERATIONS IN THE ASSOCIATED DEVICE, A LIKE PLURALITY OF OPERATING MEANS FIXED ON SAID SHAFT AND ROTATABLE THEREWITH RESPECTIVELY ASSOCIATED WITH SAID SWITCHES AND POSITIONED AND ARRANGED TO OPERATE THE ASSOCIATED SWITCHES IN A PREDETERMINED SEQUENCE AS SAID SHAFT IS ROTATED THROUGH RESPECTIVE DIFFERENT ANGLES OF ROTATION FROM SAID FIRST POSITION, A COIN SLIDE HAVING A COIN RECEIVING MEMBER OPERABLE TO TRAVERSE A PREDETERMINED PATH OF TRAVEL WHEN A PRESELECTED AMOUNT OF MONEY IS INSERTED INTO SAID COIN-RECEIVING MEMBER, THE EXTENT OF TRAVEL OF SAID COIN-RECEIVING MEMBER BEING LIMITED TO A PORTION OF ITS PATH OF TRAVEL WHEN SAID PRESELECTED AMOUNT OF MONEY IS NOT INSERTED INTO SAID COIN SLIDE AND ADVANCING MEANS ON SAID SHAFT ENGAGEABLE WITH SAID COIN SLIDE WHEN SAID COIN SLIDE IS OPERATED IN RESPONSE TO THE DEPOSIT OF A PREDETERMINED AMOUNT OF MONEY FOR ROTATING SAID SHAFT FROM SAID FIRST POSITION TO A SECOND POSITION WHEREBY SAID PLURALITY OF OPERATING MEANS OPERATES AT LEAST ONE OF SAID PLURALITY OF SWITCHES, THE INVENTION COMPRISING WIPE-OUT MEANS MOUNTED ON SAID SHAFT AND RESPONSIVE TO THE OPERATION OF SAID COIN SLIDE FOR ROTATING SAID SHAFT PAST SAID SECOND POSITION TO BY-PASS THE OPERATION CONTROLLED BY SAID ONE OF SAID PLURALITY OF SWITCHES. 